U.S. withdrawal from the world's primary climate pact will have a bigger impact - in the U.S. and globally - than the country's first retreat in 2017, analysts and diplomats told Reuters.

President Donald Trump said Monday he will again withdraw the United States from the landmark Paris climate agreement, dealing a blow to worldwide efforts to combat global warming and once again distancing the U.S. from its closest allies.

President Trump announced the withdrawal of the U.S. from the Paris Climate Agreement on Monday shortly after his inauguration, echoing a similar decision in his first term that was later reversed by former President Biden.